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egl: Always return the previously bound context. 

When a newly bound context is the same as the previously bound one,
_eglBindContextToThread should still return the context instead of NULL.
This gives the driver a chance to flush the context.
This commit is contained in:
Chia-I Wu 2010-03-28 02:11:16 +08:00
parent 3bfa23317c
commit 551bfe7a09
1 changed files with 8 additions and 9 deletions
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17
src/egl/main/eglcontext.c
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@ -246,15 +246,14 @@ _eglBindContextToThread(_EGLContext *ctx, _EGLThreadInfo *t)
_eglConvertApiToIndex(ctx->ClientAPI) : t->CurrentAPIIndex;
oldCtx = t->CurrentContexts[apiIndex];
if (ctx == oldCtx)
return NULL;
if (ctx != oldCtx) {
if (oldCtx)
oldCtx->Binding = NULL;
if (ctx)
ctx->Binding = t;
if (oldCtx)
oldCtx->Binding = NULL;
if (ctx)
ctx->Binding = t;
t->CurrentContexts[apiIndex] = ctx;
t->CurrentContexts[apiIndex] = ctx;
}
return oldCtx;
}
@ -352,7 +351,7 @@ _eglBindContext(_EGLContext **ctx, _EGLSurface **draw, _EGLSurface **read)
_eglBindContextToSurfaces(newCtx, draw, read);
/* unbind the old context from its binding surfaces */
if (oldCtx) {
if (oldCtx && oldCtx != newCtx) {
/*
* If the new context replaces some old context, the new one should not
* be current before the replacement and it should not be bound to any